Linear Acoustic L.A.M.B.D.A.-II, User Manual

Page 1: ...L A M B D A II Digital Audio and Metadata Monitor User Guide...

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Page 3: ...A M B D A II Digital Audio and Metadata Monitor User Guide Release Date March 2010 Software Version 00 00 96 and later Linear Acoustic Inc Phone 717 735 3611 FAX 717 735 3612 Web www LinearAcoustic co...

Page 4: ...RANTY PLEASE SAVE THE SHIPPING CARTON AND ALL PACKING MATERIALS FAILURE TO RETURN UNIT IN ORIGINAL SHIPPING CARTON AND PACKING MATERIALS WILL RESULT IN A CHARGE FOR NEW SHIPPING MATERIALS LIMITATION O...

Page 5: ...Quick Setup 9 2 1 Unpacking and Inspection 9 2 2 Installation 9 2 3 Rear Panel 10 2 3 1 Connection Ports 10 2 4 Quick Setup Notes 11 Chapter 3 Application Notes 13 3 1 Inputs and Reference 13 3 2 Moni...

Page 6: ...coustic LAMBDA II Audio Monitor User Guide vi Chapter 5 Specifications 27 Chapter 6 Troubleshooting 31 6 1 Unit won t power on 31 6 2 Output Audio Clicks and Pops 31 6 3 Meters Present No Audio Reprod...

Page 7: ...Linear Acoustic LAMBDA II Audio Monitor User Guide vii List of Figures 1 1 Audio Block Diagram 6 2 1 LAMBDA Rear Panel 10...

Page 8: ...Linear Acoustic LAMBDA II Audio Monitor User Guide viii...

Page 9: ...y four digital power amplifiers Linkwitz Reilly crossovers provide exceptionally detailed local monitoring Selected audio is also available from a powerful front panel headphone output stereo AES and...

Page 10: ...urse be more detailed and later chapters of this guide should be consulted for more information Figure 1 1 Audio Block Diagram 1 2 Location The LAMBDA can be used anywhere audio and or metadata need t...

Page 11: ...t connect any devices to the Ethernet or USB connectors without specific instructions from the factory 1 4 Warranty and Feedback Please take a moment to fill out the postage paid warranty card include...

Page 12: ...Linear Acoustic LAMBDA II Audio Monitor User Guide Introduction 8...

Page 13: ...king materials may not be adequate and can cause damage not covered by warranty The following essential items are provided with the unit Bag containing One power cord style matches Country of order Sp...

Page 14: ...nals to these connec tors Internal routing allows for channel selection and grouping NOTE LAMBDA uses AES 1 2 or the SDI input as a reference All other source must be synchronized to the selected refe...

Page 15: ...udio from an applied SDI signal For Dolby E or Dolby Digital AC 3 select Dolby via BNC or Dolby via SDI NOTE Choosing PCM 16 PCM or SDI will automatically map input channels Solo and downmix selection...

Page 16: ...Linear Acoustic LAMBDA II Audio Monitor User Guide Connections and Quick Setup 12...

Page 17: ...el programs All other programs can support mono or stereo programs 3 1 Inputs and Reference Audio can be applied as baseband or compressed via AES or HD SDI Metadata is via RS 485 to accompany AES sig...

Page 18: ...els 1 1 to the monitoring inputs of the LAMBDA The Select Input screen is then fixed and no adjustments can be made All channel selection and downmix settings are accomplished via the front panel func...

Page 19: ...nitor channels In the case of a Dolby Digital AC 3 signal a single program is created In the case of a Dolby E signal the number of programs created is driven by the Program Config metadata parameter...

Page 20: ...Linear Acoustic LAMBDA II Audio Monitor User Guide Application Notes 16...

Page 21: ...der knob Press directly in the center of each side to avoid hitting two switches simultaneously Left and right advance through the menus while up and down advance through settings within a menu As wit...

Page 22: ...D downmix and turn the Menu left rotary encoder to move the downmix block across channel pairs Preset Press to directly recall presets 1 4 Once pressed the lights above the four but tons will blink in...

Page 23: ...BNC M on Output Post Pre Volum e VANC Extract Line 9 VANC DID 0x45 VANC SDID 0x01 VANC M D is ASYNC Off GPI 1 Function Integration Tim e 3 15 Sec GPI 1 Function GPI 1 Function GPI 1 Function GPI 1 Pr...

Page 24: ...ation becomes In general the most used information and setup parameters are kept towards the top level Top Level Menus Main Screen Displays metering and metadata information and is the default display...

Page 25: ...ta information from any of three sources Serial RS485 VANC from HD SDI or from an installed Dolby or Linear Acoustic decoder module Signal Status Shows summary of audio and metadata configuration and...

Page 26: ...ecoded only present if Dolby decode option installed Dolby via SDI Encoded audio is de embedded from HD SDI then decoded only present if Dolby decode option installed PCM 16 via BNC Audio from all eig...

Page 27: ...c s ls rs Used for setup of each pair within a 5 1 channel program Left front Right front Center Subwoofer Left surround Right Surround C C Used for 1 1 mono programs where the two channels contain di...

Page 28: ...front panel volume control Default is Pre Volume VANC Extrct Line Selects the video line for metadata extraction Default is Line 9 VANC DID Sets the Data ID for metadata extraction Default is 0x45 VAN...

Page 29: ...threshold described below Center Ch Under GPO will be active if the Center channel of the input audio is not present i e loss of Center All Ch Under GPO will be active if the all channels of the inpu...

Page 30: ...any event that would trigger GPO will do so instantly If set to 20 seconds the event must occur for 20 seconds for the GPO to change This is useful when indicating loss of Center channel where pauses...

Page 31: ...le D connector Ethernet Port RJ 45 female jack connector HD SDI SMPTE 292 M Simultaneous extraction of sixteen channels four groups of audio plus VANC metadata per SMPTE RP 2020A B Analog Outputs Freq...

Page 32: ...in 89 483 381mm Net Weight 10 lb 4 54 kg approx Shipping Weight 12 lb 5 44 kg approx Power Requirements 100 240 VAC autoranging 50 60 Hz Power Consumption 40 W maximum Operating Temperature 0oC to 50...

Page 33: ...with Dolby metadata sources i e straight through cable should be used Table 5 4 Metadata Input Port Pinout GPIO Port TTL level controls active Low Table 5 5 GPIO Port Pinout Pin Connection 1 Shield 2...

Page 34: ...tor User Guide Specifications 30 Ethernet Port The Ethernet port is a standard RJ 45 female connector that supports 10 or 100BASE T ITU Loudness Meter Implemented per ITU BS 1770 with an adjustable 3...

Page 35: ...g power and the IEC connector and using a small flat blade screwdriver to remove the fuse holder from the IEC inlet as shown below A spare fuse is included in the holder and spare fuses were also incl...

Page 36: ...below them This determines which channels are routed to the monitoring system for reproduction over speakers headphones or analog outputs If active bar graphs have no channels indicated press the Up...